According to the mold, the prototype of the product is processed, that is, semi-finished products or accessories, including necklace accessories, beads or olive beads. Then, these semi-finished products will be transferred to the chain to connect the accessories of the necklace, thus forming a preliminary complete necklace. \x0d\ Molding: \x0d\ wax mold is made of rubber mold, and this process is called wax injection for short. Wax used to make wax molds is made of various waxes with different properties. So as to obtain synthetic wax with required melting point, hardness, strength and toughness. No matter what kind of wax it is, it is generally required to have a certain strength and be able to burn completely without leaving residue. The shorter the melting distance, the better. Wax molds can be divided into the following three categories: \x0d\ 1. Wax for injection: A good wax for injection should have low melting point, good fluidity, rapid curing, appropriate elasticity and easy removal from plastic mold. Commercial wax has various colors, such as green and red, to distinguish their properties. Green wax is the most commonly used. Good wax injection temperature is between 63℃ and 74℃. The lower the temperature, the smaller the wax shrinkage. If the injection temperature is too high, the wax will flow into the gap of the plastic mold, suck in air, and form small bubbles in the wax when cooling. \x0d\ 2。 Wax injection: after the wax is melted by a wax injection machine, it is injected into the rubber mold by pressure, and the rubber mold filled with wax should stand for 2~3 minutes. Carefully remove the wax mold after cooling. When injecting wax, the temperature of molten wax is adjusted according to the properties of wax. The air pressure is adjusted according to the thickness of wax pattern, generally controlled at 4~ 10 air pressure, and higher pressure is used for thick wax pattern. When injecting wax, clamp the plastic mold with two aluminum plates, steel plates or plexiglass plates, hold the wax injection nozzle with both hands, press the foot switch, and wax injection begins. When the indicator light goes out, the wax model is filled. \x0d\ 3。 Take the wax mold: take the wax mold out of the plastic mold at the right time, because the wax has not completely solidified and cannot be molded; It's too late, it's hard and brittle, and it's easy to break when you take it out. Put the cooled rubber mold on the workbench, hold the lower mold with one hand, and bend the upper mold with the other hand slowly, and the wax mold is still in the lower mold. Then pick up the lower mold and bend it slightly to take out the wax mold. If the removed wax mold has minor surface defects, it can be properly repaired, and the repair can be done by filling wax and scraping wax.